So I know that it's possible to create scripts for use on spreadsheets using Google Apps Script, but is there support for using created scripts on documents? I know that the API provides services for creating and editing documents, though they bear the experimental tag, but I can't seem to find a way to create and install a script on a document.
And when I say document services, I refer to the following link: https://developers.google.com/apps-script/service_document
Update: you can do this now. Just in case someone stumbles on this answer. To clarify the above answer, too: you can create scripts that are attached to documents or standalone scripts. Attached scripts can be published as add-ons, but are always associated with a document (doc, sheet, or form). Standalone scripts can be published as web apps.
You can't find it because you cannot do it. Scripts can indeed manipulate documents using Document services (as you referred to) but the script itself should be linked to a spreadsheet or a Google site. Linked is probably not the best word since the apps script can be published to work as a standalone web application - in this case the link to the spreadsheet is used only during the development of your application. I hope this makes things clear enough.
